Device for controlling valves of gas-burners.



A. B. SHAW.

DEVICE FOR CONTROLLING VALVES 0F GAS BURNERS.

APPLICATION TILED JUNE 27, 1912.

Patented Sept. 23, 1913.

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A. B. SHAW.

DEVICE FOR CONTROLLING VALVES 0F GAS BURNERS.

APPLIOATION FILED JUNE2'7,1912.

v1,07%,090. Patented Sept. 23,1913.

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AI B. SHAW, F MEDFORD, MASSACHUSETTS.

DEVICE FOR CONTROLLING VALVES OF GAS-BURNERS.

Application filed. June 27, 1912.

To all whom it may concern:

' ie it known that 1, A1 B. SHAW, a citizen of the United States of America, and a resident of Medford, in the county of Middlesex ant State of Massachusetts, have invented certain new and useful Improvements in Devices for Controlling Valves of (iasBurners, of which the following is a specification.

This invention relates to devices for controlling at a distance the operation of a valve in a supply pipe and is particularly applicable to inverted gas lamps used for illuminating streets, which are usually suspended. in an elevated position so that they cannot be readily reached. The present invention overcomes this objection, making it possible to control the illumination of one or more lamps by means of a valve located considerably removed from the lamp and in a position readily accessible.

The invention has for its object the provision of a main valve interposed between the burner and the main supply pipe, and means connected to said main supply pipe whereby a portion of the gas contained therein may be admitted to the valve casing to control the operation of said valve.

The invention further consists .in certain novel features of construction and arrangement of parts which will be fully understood by reference to the description of the drawings and to the claims hereinafter given.

Of the drawings: Figure 1 represents an elevation of a lamp controlling device cmbodying the features of the present invention. Fig. 2 represents a vertical section of the auxiliary valve drawn to an enlarged scale. Fig. 3 represents a section of the same, the cutting plane being on line 3-3 on Fig. 2. Fig. 1 represents a partial section similar to Fig. 3, showing the valve plug closed. Fig. 5 represents a vetrical section of the main valve mechanism interposed between the lamp and the supply pipe, the various elements thereof being shown in the position they would assume to shut off the supply of gas to the lamp, and Fig. 6 represents a similar view showing the various elements in position to permit the gas to pass freely to the lamp.

Similar characters designate like parts throughout the several figures of the drawings.

In the drawings, 10 represents a supply Specification of Letters Patent.

Patented Sept. 23,1913.

Serial No. 706,283.

pipe having downwardly extending b 'anch pipes 11, to the ends of which are secured the casing members 12. Extending downwardly from the lower face of each casing 12 is a short pipe 13 to which the lamp 1.4 is seem-ed. The lamps 141 are of any wellknown construction, and form no part of the present invention. Each lamp is providedwith a pilot light at the end of a small pipe 15 communicating with the branch supply pipe 11 above the casing 12. The casing member 12 is made in two parts between the flanges 16 of which is clamped by means of the screws 17 a diaphragm 18 dividing the interior chamber of said casing member 12 into two compartments. Immediately above the diaphragm 18 is positioned a cupshaped member 19 having a central perforation 2O surrounded by an annular downwardly extending flange 21. Over the perforation 20 and secured to the downwardly extending flange 21 by means of a ring 22 is a flexible member 23, hermetically sealing said opening 20 through said cup-shaped member 1.9. Extending through the upper wall of the casing 12 and communicating with the branch supply pipe 11 is a nozzle 2i, the lower end of which is substantially in the same plane with the lower edge of the annular flange 21.. Secured to the diaphragm 18 immediately beneath the opening 20 a rigid disk 25, and superimposed upon this disk immediately beneath the discharge nozzle 241 is a yielding projection 26 of cork or some other similar material. Communicating with the upper com partment 27 is a passage 28 the opposite end of which connnuuicatcs with the pipe 13 leading to the lamp 114-. llxtending from the lower compartment 29 is a small connecting pipe 30, the opposite end of which is connected to a valve casing 31 mounted upon a branch 32 from the main supply pipe 10. This branch 32 with the valve casing 31. thereon maybe located at any desired po sition where it will be readily accessible when it is desired to control the supply of gas to the lamps 14. The plug 33 in said valve casing has a diametrical opening 3 1 theretln-ough, through which the gas from the branch pipe 32 may readily pass into the small connecting pipe when said plug is in the position indicated in Fig. 3 of the drawings.

l Vhen a portion of the gas under pressure in the main supply pipe 10 is permitted to shown in Fig. 5

flow through the branch pipe 32 and the valve 33 into the small pipe 30 pressure will be admitted to the lower compartment 29 which will act upon the diaphragm 18when in the position shown in Fig. 6 of the drawings to move it upwardly into the position of the drawings the projection 26 holding the flexible member 23 in contact with the end of the inlet nozzle 24 to close this valve and shutoff any further admission of gas through the nozzle 24 into the upper compartment 27. Obviously when the supply of gas into the compartment 27 has been shut off in this manner. the light in the lamp 14 will immedi- I ately become extinguishech and will remain' so as long as the valve .33 remains in the position indicated in Fig. 3 of the drawings.

Should it be desired at any time to light the lamp or lamps 1a the valve plug 33 may be turned into the position shown in Fig. 4c of the drawings, thereby shut-ting off further supply of gas to the small pipe 30. One side of the valve plug 33 is cut away as indicated at- 35 so that when the valve plug 33 is in this position the end of the pipe30 will communicate with the discharge outlet or vent 3.6 in the valve casing 31, thereby permitting the escape of gas or air therein reducing the pressure contained within said pipe 3Q or the lower compart- 'ment 29. The gas in. the pipe 11, however,

- is always under normal pressure and as it passes through the nozzle 2 1- into the upper compartment 27 it will act upon the flexible member 23, moving it downwardly into the position shown in Fig. 6 of the drawings, so that a free passage of the gas from the nozzle 24 through the passage 28 and pipe 13 to the burner of the lamp 1 1:, is assured, and this gas emitted from the burner is lighted by the pilot. Then itis desired to again extinguish the light in the lamp 14. the valve plug 34 is turned into the position shown in Fig. 3, and a new supply of gas under its normal pressure is admitted to the lower compartment 29 through the pipe 30 to again close the nozzle 2% and prevent the further admission of gas to the compartment 27, thus cutting oh the supply of gas to the burner.

A vent 37 extends through the casing 1-2 into the space between the diaphragm 18 and the cup-shaped member 19, thereby providing a means whereby the air contained therein is relieved from pressure during the movement of said diaphragm. The rigid disk 5 serves to cause a larger area of the diaphragm to move bodily upwardly. in a. horizontal plane when the gas under pressure is admitted to the compartment 29. This disk 25 is of considerably greater diameter than the opening 20 so that when pressure is ad mitted to the lower compartment 29 the upward movement of said diaphragm to close the nozzle 24: is always assured owing to the difference in pressures acting thereon.

'By means of this device, the lighting and extinguishing of the lights in the lamps is under perfect control at all times even.

at considerable distance from the lamps. This is of great advantage in the lighting and extinguishing of street lamps, and is also of great advantage in inside installations where it is desired to light or eX tin 'uish a Jlur'alit of lamps sin'iultaneouslv. V I: L .1

The device is particularly adapted for lighting show windows, itbeing'possible'to locate the controlling valve at any conven lent point within the building and to op advantages of the invent-ion will be fully understood from the foregoing. 7

Having thus described my invention. 1 claim: 7

1. In a device of the class described, the combination of a supply pipe containing an agent under pressure; a casing secured to the end thereof provided with a discharge outlet therefrom communicating at one end with the interior chamber'of said casing near the top and at the other with the lamp burner; a gas inlet nozzle extending through said casing into the interior thereof and communicating with said supply pipe; means within said casing for dividing said chamber into two compartments, said means being provided with a greater pres sure contactlng surface on its under side.

than on its upper side, whereby it may be forced against the .end of said inlet nozzle and close the same; a pipe connecting the lower compartment with said supply pipe; and a valve in said connecting pipe adapted to be opened to admit a portion of said agent under pressure to said lower compartment to operate said closing means.

2. In a device of the class described, the combination of a supply pipe containing an agent under pressure; a casing securedcto the ends thereof provided with a discharge outlet therefrom communicating at one end with the interior chamber of said casing near the top and at the other with the lamp burner; a gas inlet nozzle extending through said easing into the 'interiorthere of and communicating with said supply pipe; means within said casing for dividing said chamber into two compartments, said means being provided with a greater pressure contacting surface on its under side than on its upper side whereby it may be forced against the end of said inlet nozzle and close the same; a pipe connecting the lower compartment with said supply pipe; a valve in said connecting pipe adapted to be opened to admit a portion of said agent under pressure to said lower compartment to operate said closing means, the casing for said valve being provided with a discharge outlet open to atmosphere and adapted to communicate with said connecting pipe when said valve is in position to cut off communication with the main supply.

3. In a device of the class described, the combination of a supply pipe containing an agent under pressure; a casing secured to the end thereof provided with a discharge outlet therefrom communicating with the interior chamber of said casing near the top; a nozzle extending into said casing and communicating with said supply pipe; a perforated partition in said chamber; a flexible member covering said perforation and normally closing said nozzle; a diaphragm extending across said chamber provided with a projection normally contacting with said flexible member; a pipe connecting said chamber beneath said diaphragm with the main supply; and a valve in said connecting pipe adapted to be operated to admit a portion of said agent under pressure to said casing chamber to close said inlet nozzle.

4;. In a device of the class described, the combination of a supply pipe containing an agent under pressure; a casing secured to the end thereof provided with a discharge outlet therefrom communicating with the interior chamber of said casing near the top; a nozzle extending into said casing and communicating with said supply pipe; a perforated partition in said chamber provided with a cylindrical flanged wall to said perforation surrounding said inlet nozzle; a flexible member covering said perforation secured to said flanged wall and adapted to close said nozzle; a diaphragm extending across said chamber provided with a projection normally contacting with said flexible member; a pipe connecting said chamber beneath said diaphragm with the main supply; and a valve in said connecting pipe adapted to be operated to admit a portion of said agent under pressure to said casing chamber to close said inlet nozzle.

5. In a device of the class described, the combination of a gas burner; a gas supply pipe thereto; a casing in said supply pipe; a diaphragm dividing the interior of said easing into two compartments; a small pipe leading from said supply pipe to the lower compartment; an inlet nozzle from said supply pipe extending into the upper compartment; a partition provided with an opening therein surrounding said nozzle; means coacting with said diaphragm normally closing said nozzle and adapted to prevent the passage of the gas through said opening; a valve in said branch pipe adapted to be opened to admit gas under pressure to said lower compartment and force said diaphragm toward said inlet nozzle and operate said closing means; and a pipe between said casing and lamp connected by a passage to said upper compare ment.

6. In a device of the class described, the combination of a gas burner; a gas supply pipe thereto; a casing secured to the end thereof provided with a discharge outlet therefrom communicating with the interior chamber of said casing near the top; a nozzle extending into said casing and communicating with said supply pipe; means within said casing for dividing said chamber into two compartments and closing the said nozzle, said closing means being pro vided with a greater pressure contacting surface on its under side than on its upper side; a pipe connecting the lower compartment with said supply pipe; and a valve in said connecting pipe adapted to be opened to admit gas under pressure to said lower compartment to operate said closing means.

7. In a device of the class described, the combination of a valveless supply pipe containing gas under pressure; a valve casing in the line of supply pipe and provided with an inlet nozzle from said supply pipe; a main valve in said casing adapted to be opened by the pressure thereon of gas admitted through said nozzle, said valve hav ing a lesser pressure contacting surface on its nozzle side than on its opposite face; a branch pipe leading from said supply pipe to said casing adapted to admit gas thereto to close the main valve; and an auxiliary valve in said branch pipe adapted to control the passage of gas through said b 'anch pipe to said casing.

S. In a device of the class described, the combination of a supply pipe containing gas under pressure; a valve in said supply pipe having two diaphragms of different diameters; means for opening said valve by the normal pressure in said pipe acting on the snmller diaphragm; and a branch pipe from said supply pipe adapted to admit gas under pressure against the larger diaphragm to close said valve.

9. In a device of the class described, the combination of a supply pipe containing gas under pressure; a valve casing with which said supply pipe communicates having two diaphragins, one smaller than the other and adapted to close the inlet from said supply pipe to said valve casing; and a branch pipe from said supply pipe normally open to atmosphere but adapted to supply gas under pressure against said larger diaphragm to shut ofi further admission of the main sup ply to said valve casing.

10. In a device of the class described, the combination of a plurality of lamps; a single gas supply pipe leading to all of said lamps; a valve for each lamp operable in either direction by the normal pressure of gas in said supply pipe and controlling the supply of gas thereto from said supply pipe, said value being positioned adjacent to the burner of said lamp; a supplemental in said supplemental pipe adapted to be opened to admit gas under normal pressure from said gas main to each lamp valve.

11. In a device 01 the class described, the combination of a plurality of lamps; a

valve for each lamp; a sin 'le pipe supplying gas under normal pressure to one side of each valve and adapted thereby to open said valve and supply gas to said lamp; a sin gle supplemental pipe from the same supply pipe adapted to admit gas therefrom to each of the valve casings and subject the opposite side of each valve to pressure over a greater surface thereof to close said valve; and a valve in said supplemental pipe adapted to shut oil further supply of gas to said casings through said pipe and'permit the escape of that contained th rein beneath said valves whereby said valves may be opened by the normal pressure of the gas from the main supply acting thereon.

12. In a device of the class described, the combination of a supply pipe containing an agent under pressure; a casing secured to the end thereof provided With a discharge outlet therefrom communicating with the interior chamber of said casing near the top; a nozzle extending into said casing and communicating With said supply pipe; a perforated partition in said chamber; a diaphragm extending across said chamber; a member for closing the perforation in said partition adapted to be actuated with said diaphragm in either direction and normally preventing the flow of said agent into said casing through said nozzle; a pipe connecting said chamber beneath said diaphragm With the main supply; and a valve in said connecting pipe adapted to be operated to admit a portion of said agent under pres sure to said casing chamber to close said in let nozzle.

Signed by meat 4 Post Office Square, Boston, Mass, this 25th day of June, 1912. a

' AI 13. SHA N.

Witnesses V WALTER E. LOMBARD, NATHAN G. LOMBARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

